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german
4 years ago
9

You mix together two different substances. There is a loud noise, and a burst of flame. Which of the following is most likely to

be true?
Chemistry
2 answers:
cupoosta [38]4 years ago
4 0
A chemical reaction is occuring
vova2212 [387]4 years ago
3 0
A chemical reaction is occurring
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2. When 400 J of heat is added to 5.6 g of olive oil at 23*C, the temperature increases to 87*C. What is the specific heat of th
Maksim231197 [3]

Answer:

The answer to your question is C = 1.116 J/g°C

Explanation:

Data

Q = 400 J

mass = 5.6 g

Temperature 1 = T1 = 23°C

Temperature 2 = T2 = 87°C

Specific heat = C = ?

Formula

Q = mC(T2 - T1)

- Solve for C

C = Q / m(T2 - T1)

- Substitution

C = 400 / 5.6 (87 - 23)

- Simplification

C = 400 / 5.6(64)

C = 400 / 358.4

- Result

C = 1.116 J/g°C

7 0
4 years ago
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tresset_1 [31]

Answer:

True

Explanation:

This is true because technology advances all the time and even Newton's "Laws" could be disproved in the future.

4 0
3 years ago
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A sample of a radioactive isotope initially contains 20 x 10^10 atoms. After 16 days, 5 x 10^10 atoms remain. what is the half-l
nekit [7.7K]
I think the answer is A but I could be wrong
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K + Cl2 --&gt;_KCI<br> -<br> a<br> 2,3<br> b<br> 32<br> С<br> 2,2<br> 1,2<br> d
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Answer:

b 32

Explanation:

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Determine the genotypes of offspring 1-8.
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